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Figure 28-3. Boundary-scan cell for bi-directional port pin with pull-up function.
DQ DQ
G
0
1
0
1
DQ DQ
G
0
1
0
1
0
1
Port Pin (PXn)
Vcc
EXTEST
To next cell
ShiftDR
Output control (OC)
Output data (OD)
Input data (ID)
From last cell
UpdateDRClockDR
FF1 LD1
LD0FF0
0
1
Pull-up enable (PUE)
